Journal of Neurology

, Volume 253, Issue 9, pp 1197–1202

Dural sinus thrombosis in spontaneous intracranial hypotension

Hypotheses on possible mechanisms

Authors

  • Mario Savoiardo
    • Department of NeuroradiologyIstituto Nazionale Neurologico “C. Besta”
  • Silvia Armenise
    • Department of RadiologyCard. G. Panico Hospital
  • Pantaleo Spagnolo
    • Department of RadiologyF. Ferrari Hospital
  • Tiziana De Simone
    • Department of NeuroradiologyIstituto Nazionale Neurologico “C. Besta”
  • Maria Luisa Mandelli
    • Department of NeuroradiologyIstituto Nazionale Neurologico “C. Besta”
  • Alessandra Marcone
    • Department of NeurologySan Raffaele Hospital
  • Giancarlo Morciano
    • Department of RadiologyF. Ferrari Hospital
  • Cosma Andreula
    • Department of NeuroradiologyCittà di Lecce
  • Eliana Mea
    • Department of NeurologyIstituto Nazionale Neurologico “C. Besta”
  • Massimo Leone
    • Department of NeurologyIstituto Nazionale Neurologico “C. Besta”
    • Department of NeuroradiologyIstituto Nazionale Neurologico “C. Besta”
ORIGINAL COMMUNICATION

DOI: 10.1007/s00415-006-0194-z

Cite this article as:
Savoiardo, M., Armenise, S., Spagnolo, P. et al. J Neurol (2006) 253: 1197. doi:10.1007/s00415-006-0194-z

Abstract

Dural sinus thrombosis (DST) is rarely associated with spontaneous intracranial hypotension (SIH). Engorgement of the venous system, caused by the CSF loss that occurs in SIH, is considered to favour the thrombosis, although signs of both SIH and DST are usually seen simultaneously at the first diagnostic MRI. We observed two patients with SIH and DST. Changes in pattern of headaches and MRI findings demonstrated that DST followed SIH. In SIH, the velocity of the blood flow in the dural sinuses may be reduced because of dilatation of the venous system which compensates the CSF loss. Other possible mechanisms seem unlikely on the grounds of both clinical presentation and MRI studies.

Keywords

spontaneous intracranial hypotension CSF loss dural sinus thrombosis venous hypervolemia blood flow velocity

Copyright information

© Steinkopff Verlag Darmstadt 2006